Resistance breathing device



FIG. 1 is a top perspective view of a resistance breathing device showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in the drawings illustrate stitching on the resistance breathing device that form part of the claimed design. 

CLAIM An ornamental design for a resistance breathing device, as shown and described. 